James heeva jones



" (No Model.)

J. H. JONES.

MANUFACTURE OF HARVESTER FINGER BARS.

No. 353,636. Patented Nov. 30, 1886.

[TNT N NITED- STATES PATENT OFFICE.

JAMES HERVA JONES, OF ROCKFORD, ILLINOIS, ASSIGNOR TO EMERSON, TALCOTT & (10., OF SAME PLACE.

' MANUFACTURE OF HARVESTER FINGER-BARS.

SPECIFICATION forming part of Letters Patent No. 353,636, dated November 30, 1886.

Application filed January 30, 1886'. Serial No. 190,352. (No model.)

To aZZ whom it may concern: tively with its front edge, cuts the rearward Be it known that I, JAMES HERVA JONES, transverse angle or rearward increasingthicka citizen of the United States, residing in the mess of the bar obliquely and produces a unicity of Rockford, in the county of Winnebago form decreasing thickness of the back edge 5 and State of Illinois, have invented a new and thereof from the point of intersection of the useful Improvement in Finger-Bars, of which crown-line with its rear edge to its point end. the following is a specification. The portion I of the bar between the crown- This invention relates to finger-bars of harline H and its rear edge is produced on its vesting-machines." Its object is to produce a upper face on a rearwardly-decreasing trans- 10 light-weight finger bar for harvesting maverse angle, the same as the surface F of the chines, of a conformation possessing great rebar. The inclination of the rear edge of the sistance in the direction of the strains to which bar relatively with its front edge cuts its rear a finger-bar is subjected in use, and having a inclined decreasing uppersurface, I, obliquely, conformation capable of easy construction. and produces a uniform decreasing thickness 15 To this end I have designed and constructed of its rear edge from the intersection of the the finger-bar represented in the accompanycrown-line therewith toward its heel end. ing drawings. In this construction of a finger bar the In the drawings, Figure 1 is an upper face thickest part of its rear edge is at the point of and rear edge representation, in isonietrical, of intersection ofthe crown-line with its rear edge,

20 my improved finger-bar. Fig. 2 is a front from which point its thickness diminishes uniedge representation of the bar. Fig. 3 is an formly in opposite directions toward its oppounder face and front edge representation of site ends, and the thickness of the bar on the the bar in isometrical. Fig. 4 is a rear edge crown-line His uniform throughout its length. view of the bar. Fig. 5 is a shoe or heel end In this construction of finger-bar, by reason of 25 View of the bar. Fig 6 is a transverse section the opposite equal transverse angles forming on dotted line 1. Fig. 7 is a transverse secits upper face on both sides of the crown-line, tion on dotted line 2. Fig. Sis a plan view, in in connection with the taper angle of its rear isometrical, of a bar from which to produce edge cutting the upper face-angles obliquely my improved fingenbars; and Fig. 9 is an end on both sides of the crown-line, I produce fin- 0 representation of the bar represented at Fig. 8. ger-bars of uniform angles both transversely The finger-bar represented in the figures in and lengthwise, with thin forward edge to replan is ofthe usual taper form, being of greater ceive the guard-fingers, and presents but little width at its shoe or heel end A than at its obstruction to thepassageof the cut grass over 8 divider or point end, B, the reduction being the bar, and a width sufficient to resist edgemade on the rear edge of the bar to produce wise or lateral strain, a depth or thickness on the taper. The under face, 0, of the bar is a its rear edge to prevent undue sagging or plane even surface, and its front edge, D, and crowning of its central portion in use or in rear edge, E, are substantially at right angles handling, and its wedging or triangular form with its under face. The front edge, D, of in transverse section operates to resist tor- 5 0 the bar is of uniform thickness throughout its sional strains. This construction of finger-bar entire length, and from its front edge rearis adapted to machines employing finger-bars ward the bar increases in thickness in the of various lengths, but is more especially apsame plane throughout its entire length, and plicable to machines known as the long bar this increasing in thickness extends at the or wide cut machine, .in which finger-bars 5 heel end portion of the bar to near its rear of unusual lengths are employed.

edge, to a point on the upper surface, F, In the foregoing I have described the plane thereof, (represented bya crown-line, H,) exface 0 of my improved finger-bar as the under tending from its heel end parallel with its side, and the inclined faces F and I as its upfront edge until it intersects the rear inclined per side, and I prefer to so employ it; but it 50 edge thereof, in this instance a little over oneis capable of being reversed, to employ the side third the length of the bar from its heel end. 0 as its upper side.

The rear edge of the bar, being inclined rela- In the manufacture of my improved fingerbar I employ the following process, using a bar substantially such as represented at Figs. 8 and 9, a productof a rolling-mill, of suitable material, rectangular in plan, having its edges (2 of uniform thickness throughout its length, its under face, 0, in the same plane throughout its length and width, and its upper surfaces, in apposite equal inclined planes rising from its edges din opposite equal angles to its center crown-line, h, on which linethe bar throughout its length is uniform, but of a thickness greaterthan itsedges d. This bar-a product of a rolling-mill-is produced in-the same manner asot-her metallic bars are produced, by passing the material through rolls of a construction to give the bar the required conformation. The bars thus produced are cut or otherwise reduced to the required length, and are then subjected to a ing two complete like fin ger-bars, substantially as shown in Figs. 1 to 7, inclusive, and as hereinbefore described.

I-claim as my invention-:- v

1. A tapered finger-bar uniform in thickness on its front edge and its rear edge of greater thickness than its front edge, said bar diminishing on its rear edge in width and thickness toward its free or divider end.

2. A finger-bar of taper form in plan, having its rear edge of greater thickness than its front edge, said rear edge produced in opposite uniform tapers in equal opposite angles from its point of greatest thickness nearest its shoe or heel end, substantially as and for the purpose set forth.

3. A finger-bar of taper form in plan, uniform in thickness on its crown-line, and having its rear edge of greater thickness than its frontedge, said rear edge produced in opposite uniform tapers in equal opposite angles from its point of greatest. thickness nearest its shoe or heel end, substantially as and for the purpose set forth.

4. A finger-bar of taper form in plan, having its front edge uniform in thickness, its rear edge of greater thickness than its front edge,

said rear edge produced in opposite uniformfront edge, and its rear edge of greater thickness than its front edge, said rear edge pro- 'duced in opposite uniform tapers in equal opposite angles from its point of greatest thickness nearest its shoe or heel end, substantially,

as and for the purpose set forth.

6. A finger bar of taper form in plan, havsubstantially as and for the pu rposeset ing one plane side, and its rear edge of greater thickness than its front edge, said rear edge produced imopposite uniform tapers in equal opposite angles from its point of greatest thickness nearest its shoe or heel end, substantially as and for the purpose set forth.

j 7. A finger-bar of taper form in plan, having one plane side uniform in thickness onits crown-line, and its rear edge of greater thick ness than its front edge, said rear edge produced in opposite uniform tapers in equal opposite angles from its point. of greatest thickness nearest its shoe or heel end, substantially as and for the purpose set forth.

8. A finger-barjof taper form in plan, having one plane side, its front edge uniform in thickness. its rear edge of greater thickness than its front edge, said rear edge produced in opposite uniform tapers in equal opposite angles from its point of greatest thickness nearest its shoe or heel end, substantially as and for the purpose set forth.

9. A finger-bar of taper form in plan, having one plane side, its front edge uniform in thickness, its crown of uniform thickness greater than its front edge, and its rear. edge of greater thickness than its front edge, said zoo rear edge produced in opposite uniform tapers in equal opposite angles from its point of greatest thickness nearest its shoe or heel end, sub stantially as and for the purpose set forth.

JAMES HBERVA JONES.

Witnesses:

HARLOW B. WHEELER, A. O. BEHEL. 

